Finding the Fourth Proportional to 589,424.82, 813,406.24 and 321,152.82

Step by Step Solution

1. Step 1: Write the proportion equation
   589,424.82 : 813,406.24 = 321,152.82 : x
2. Step 2: Convert to fraction form
   589,424.82/813,406.24 = 321,152.82/x
3. Step 3: Cross multiply
   589,424.82x = 813,406.24 × 321,152.82
4. Step 4: Simplify right side
   589,424.82x = 261,227,707,781.60
5. Step 5: Solve for x
   x = 261,227,707,781.60/589,424.82
6. Step 6: Final answer
   x = 443,190.89